Rheumatoid arthritis is an autoimmune disorder, which means the condition causes your immune system to mistakenly attack the healthy cells in your body leading to inflammation.
Rheumatoid arthritis most commonly affects the lining of your joints, which can lead to joint damage and deformity. However, the autoimmune disease can also attack other parts of your body, including your skin, eyes, heart, lungs, and blood vessels.
Researchers aren’t sure what causes rheumatoid arthritis, but you may be at risk of developing the chronic condition if it runs in your family. It also tends to occur in women more often than men.